How many viable words are possible to put together using the specified combination?You can select up to 2 words addressing your query.
How many letters are in the biggest word from this list?The largest word you can construct from words that have 'i' in and end with 'tn' is 'distn', which is made up of 5 characters.
What's the highest scoring word you can play in Scrabble ?As there are only 2 results possible, your only viable word is 'distn' which scores 6 points.